JP2602604Y2 - Installation structure of the water outlet thermal insulation cap - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a heat insulating cap to a distal end of a water discharge pipe for discharging hot and cold water in a kitchen or the like.

[0002]

2. Description of the Related Art A heat insulating cap made of a synthetic resin is conventionally attached to the tip of a water discharge pipe in order to prevent a burn due to heating of the tip of the water discharge pipe when using hot water. FIG. 9 shows a conventional heat insulating cap mounting structure. In the figure, a is a metal water discharge pipe, b is a heat insulating cap secured by tightening a screw c to an opening edge of the tip, d is an O-ring provided at a connection portion thereof for preventing water leakage, and e is an O-ring. It is a rectifying net fixed by screwing a nut h into an outer peripheral thread groove g of the water discharge port f of the heat insulating cap b.

[0003]

However, in the conventional heat-insulating cap mounted in this manner, the inner surface of the cap is in direct contact with hot water, so that the resin is easily affected by heat and easily deformed, discolored, cracked, and the like. There is.

[0004] Further, in order to tighten and fix with a screw c,
Excessive tightening torque causes cracking of the heat-insulating cap, and looseness causes looseness or detachment of the heat-insulating cap, so that it is not easy to control the tightening torque.

On the other hand, a water discharge pipe with a heat insulating cap disclosed in Japanese Utility Model Laid-Open No. 2-109098 is provided with a water discharge fitting at the tip of the water discharge pipe so that hot water does not directly contact the resin.
By tightening a nut for mounting a straightening net to the water outlet fitting, an end of the nut is fitted into a retaining hole formed in the heat insulating cap, and the heat insulating cap is fixed to the water discharging pipe so that it cannot be pulled out. I have.

However, in the mounting structure of the heat insulating cap described in this publication, the heat insulating cap cannot be mounted unless the nut is screwed to a predetermined position. There is a problem that if the nut is removed to connect the water to the water discharge port, the heat insulating cap is removed.

[0007]

SUMMARY OF THE INVENTION The present invention is intended to solve the above problems, with integrally to project the cylindrical spout fitting on the lower side of the front end portion of the water discharge pipe, the said discharge water pipe A U-shaped notch wider than the outer diameter of the spout is formed on the lower wall of the heat insulating cap made of synthetic resin that can cover the front end, and the spout is inserted deep into the notch. the cross a stop member which is mounted a heat insulating cap on the tip portion of said discharge water pipe, abuts against the spout fitting into the notch by
By directly fixing to the thermal cap,
It is characterized in that the cap is prevented from coming off .

[0008]

[Function] By fixing the stop member to the heat insulating cap, the heat insulating cap can be attached to the tip of the water discharge pipe.
It can be used without removing the nut even if the nut is removed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. In the drawing, reference numeral 1 denotes a metal water discharge pipe in which a sealing plug 2 is fitted into a distal end opening by brazing, and a round hole 4 is formed on a lower surface of a distal end portion 3 of the water discharge pipe 1 so that the round hole 4 is formed therein. The water outlet fitting 5 is integrally protruded from the lower surface of the water discharge pipe 1 by fitting and fixing the upper part of the cylindrical water outlet fitting 5 by brazing. Reference numeral 6 denotes a drainer provided in the spout 5, and reference numeral 7 denotes a thread groove formed in the outer periphery of the lower end of the spout 5.

Reference numeral 8 denotes a heat insulating cap made of synthetic resin formed so as to cover the distal end portion 3 of the water discharge pipe 1. The lower wall of the heat insulating cap 8 has a width substantially the same as the outer diameter of the water discharge fitting 5. U
A letter-shaped notch 9 is formed from the opening edge 10.
(See FIG. 5). Then, grooves 11 having a dovetail-shaped cross section are formed in parallel with the opposing inner surfaces of the notches 9, and the grooves 11, 11 are formed.
The end portions 11 ', 11' near the opening edge 10 are further cut off wider to form engaging step portions 12, 12, respectively.

Reference numeral 13 denotes a plate-shaped stop member having ridges 14, 14 slidable in the concave grooves 11, 11 on both side edges.
The leading edge 15 of the stop member 13 is cut out in a semicircular shape that matches the outer peripheral surface of the water outlet fitting 5. In addition, the ridge 14,
Wedge-shaped claws 16, 16 project from the outer surfaces of the raised portions 14 ', 14' formed near the other end of the 14, respectively. 17
Is a nut having a rectifying net 18 therein.

The heat-insulating cap 8 is attached to the distal end 3 of the water discharge pipe 1 by inserting the water outlet fitting 5 to the depth of the notch 9, and the protrusions 14, 14 of the stop member 13 are connected to the notch 9. The stopper member 13 is inserted into the notch 9 by sliding into the concave grooves 11, 11, and the claw 16, 1 is inserted when the distal end edge 15 contacts the outer peripheral surface of the spout 5.
6 is engaged with the engaging step portions 12, 12 so that the stop member 13 does not come out of the notch 9, and the heat insulating cap 8 is attached to the distal end portion 3 so that it cannot be removed. The rectifying net 18 is attached to the spout 5 by screwing the nut 17 into the screw groove 7.

In this embodiment, the projections 14, 14 are engaged with the dovetail-shaped concave grooves 11, 11, so that the heat-insulating cap 8 is not deformed and the width of the cutout 9 is not increased. . However, the concave grooves 11 do not necessarily have to have a dovetail shape as in this embodiment.
May be configured to be slidable.

FIGS. 6 to 8 show another embodiment of the mounting structure of the water discharge port heat insulating cap of the present invention. In the figure, the same reference numerals as those in FIGS. 1 to 5 indicate the same or corresponding parts as in the above-described embodiment. In this embodiment, a U-shaped notch 9 having substantially the same width as the outer diameter of the water outlet fitting 5 is formed on the lower side wall of the heat insulating cap 8 and Ω-shaped notches 9 are formed at portions of the opposite side of the notch 9 near the opening edge 10. Are extended. Then, the heat-insulating cap 8 is attached to the distal end portion 3 by inserting the spout 5 into the notch 9. The stop member 13 is integrally formed of a synthetic resin into a plate-like shape including the engagement holes 20 and 20 of the cutout 9 and excluding the insertion portion of the water outlet fitting 5. The communicating portion of the engaging holes 20, 20 with the notch 9 and the communicating portion of the stop member 13 with the portion corresponding to the engaging holes 20, 20 project in a rectangular shape as shown in FIG. Ridges are formed. Therefore, the stop member 13 is notched 9
When the fitting holes 20 and 20 are fitted, the communicating portions of the engaging holes 20 and 20 are slightly elastically expanded outward, and the V-shaped vertices on the side of the stop member 13 are formed inside the communicating portions of the engaging holes 20 and 20. It is fastened so as not to be easily disengaged by engaging at a point slightly beyond the U-shaped vertex of the peripheral surface. By fixing the stop member 13 to the heat insulating cap 8 in this manner, the heat insulating cap 8 is prevented from being pulled out.

The structure for fixing the stop member 13 to the heat insulating cap 8 is not limited to the structure of the above-described embodiment, and various other means can be considered. In the present invention, the fixing member 13 is fixed to the heat insulating cap 8, and the heat insulating cap 8 can be easily and securely attached to the distal end portion 3 of the water outlet fitting 5 without using screws or nuts as in the related art. Notable.

[0016]

As described above, in the mounting structure of the present invention, the heat insulating cap is attached to the tip of the water discharge pipe, and the stop member is fixed in the notch of the heat insulating cap to prevent the heat insulating cap from coming off. It can be easily installed without considering the tightening torque such as screwing. The insulation cap does not come off even when the nut screwed to the spout fitting is removed. Therefore, even if a water purifier, a shower sprinkler, a foamer, or the like is retrofitted to the screw groove of the spout fitting. We can use without trouble. Further, since the screw groove of the water outlet fitting has a higher mechanical strength than the screw groove formed in the resin member, the above-mentioned water purifier and the like can be reliably connected. Since the hot water does not directly contact the resin, there are various advantages such that the heat insulating cover is not likely to be deformed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a water discharge port heat insulating cap showing one embodiment of the present invention.

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is an exploded perspective view.

FIG. 5 is a perspective view of a heat insulating cap.

FIG. 6 is an exploded perspective view showing another embodiment.

FIG. 7 is a bottom perspective view showing another embodiment.

FIG. 8 is a sectional view taken along line BB of FIG. 7;

FIG. 9 is a longitudinal sectional view showing a mounting structure of a conventional water discharge port heat insulating cap.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 water discharge pipe 3 tip 5 water discharge fitting 7 screw groove 8 heat insulating cap 9 notch 10 opening edge 11 concave groove 12 engaging step 13 stop member 14 convex ridge 16 claw 17 nut 18 rectifying net

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-109098 (JP, U) JP-A-2-129469 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) F16L 59/147 E03C 1/044 E03C 1/042

Claims (3)

(57) [Scope of request for utility model registration] 1. A tubular water outlet fitting is integrally provided below a distal end portion of a water discharge pipe, and a lower end wall of a synthetic resin heat insulating cap capable of covering the distal end portion of the water discharge pipe is provided on the lower wall. A U-shaped notch wider than the outer diameter of the spout fitting is formed from the opening edge thereof, and the heat insulating cap is attached to the tip of the spout pipe by inserting the spout fitting to the inside of the notch, thermal insulation cap to stop member abuts the spout fitting into the cutout
The heat insulation cap is removed by directly fixing
The mounting structure of the water outlet thermal insulation cap, which is characterized by preventing the injuries. 2. The heat insulating cap or the stop member is engaged with each other.
The engaging member is provided with an engaging step and a pawl, and the stop member is opened with a U-shaped notch.
2. The spout according to claim 1, wherein the spout is fixed by sliding from the rim side.
Mounting structure of water port insulation cap. 3. The stop member is cut out from below the heat insulating cap.
The spout according to claim 1, wherein the spout is fixed by being fitted into the spout.
Mounting structure of heat insulation cap.